JPH0238071B2 - - Google Patents
Info
- Publication number
- JPH0238071B2 JPH0238071B2 JP60187466A JP18746685A JPH0238071B2 JP H0238071 B2 JPH0238071 B2 JP H0238071B2 JP 60187466 A JP60187466 A JP 60187466A JP 18746685 A JP18746685 A JP 18746685A JP H0238071 B2 JPH0238071 B2 JP H0238071B2
- Authority
- JP
- Japan
- Prior art keywords
- welded
- aluminum
- welding
- electrode wire
- shoulder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000003466 welding Methods 0.000 claims description 40
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 37
- 229910052782 aluminium Inorganic materials 0.000 claims description 36
- 239000011248 coating agent Substances 0.000 claims description 19
- 238000000576 coating method Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 6
- 238000000151 deposition Methods 0.000 claims 2
- 239000011261 inert gas Substances 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000002845 discoloration Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 3
- 235000011613 Pinus brutia Nutrition 0.000 description 3
- 241000018646 Pinus brutia Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- RYZCLUQMCYZBJQ-UHFFFAOYSA-H lead(2+);dicarbonate;dihydroxide Chemical compound [OH-].[OH-].[Pb+2].[Pb+2].[Pb+2].[O-]C([O-])=O.[O-]C([O-])=O RYZCLUQMCYZBJQ-UHFFFAOYSA-H 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 235000014171 carbonated beverage Nutrition 0.000 description 1
- 235000013353 coffee beverage Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005360 mashing Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、コーヒー飲料缶、炭酸飲料缶、ジユ
ース缶、一般食缶等に用いられる溶接缶胴の製造
方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing welded can bodies used for coffee beverage cans, carbonated beverage cans, youth cans, general food cans, and the like.
（従来の技術）
特公昭54−26213号公報や特公昭59−31598号公
報に、錫メツキ鋼板等の缶用素材の対向する端縁
を重ね合せて筒形体を形成し、重ね合せ部の両面
に表面平坦な裸の、もしくは錫メツキ層を備えた
電極ワイヤを対接させながら電気抵抗溶接して溶
接缶胴を製造する方法が提案されている。(Prior art) According to Japanese Patent Publication No. 54-26213 and Japanese Patent Publication No. 59-31598, opposing edges of can materials such as tin-plated steel sheets are overlapped to form a cylindrical body, and both sides of the overlapping portion are overlapped. A method has been proposed in which a welded can body is manufactured by electrical resistance welding while electrode wires with flat surfaces, bare or with a tin-plated layer, are brought into contact with each other.
重ね合せ部は溶接のさい高温（約1000℃以上）
になるので、溶接部は大気中の酸素により酸化し
て、表面に褐色、紫色ないし暗黒色等の酸化鉄お
よび／または酸化錫の被膜が形成されて変色し、
そのため金属色を失つて美観を損じ、商品価値を
失い易い。 The overlapping part is high temperature during welding (approximately 1000℃ or more)
As a result, the welded part is oxidized by oxygen in the atmosphere, and a brown, purple, or dark black film of iron oxide and/or tin oxide is formed on the surface, causing discoloration.
As a result, it loses its metallic color, impairs its aesthetic appearance, and tends to lose its commercial value.
その対策として特公昭59−31598号公報では不
活性ガス雰囲気中で溶接を行うことを提案してい
る。この場合溶接部の出口側に不活性ガスの供給
装置（例えば実公昭56−147982号公報参照）を設
ける必要があり、そのため生産コストの上昇を招
くという問題を生ずる。また上記供給装置を設け
ても、供給する不活性ガスの圧力の量が不足であ
つたり、あるいは供給装置のシールが不完全で、
不活性ガス雰囲気中に空気が混入する場合は、前
記の変色を招き易く、このような欠陥を防止する
ための作業管理が複雑になるという問題を生ず
る。 As a countermeasure to this problem, Japanese Patent Publication No. 59-31598 proposes performing welding in an inert gas atmosphere. In this case, it is necessary to provide an inert gas supply device (for example, see Japanese Utility Model Publication No. 147982/1982) on the exit side of the welding part, which poses the problem of increased production costs. Furthermore, even if the above-mentioned supply device is provided, the amount of pressure of the inert gas supplied may be insufficient, or the seal of the supply device may be incomplete.
When air is mixed into the inert gas atmosphere, the above-mentioned discoloration is likely to occur, creating the problem that work management to prevent such defects becomes complicated.
（発明が解決しようとする課題）
本発明は、必ずしも不活性ガス雰囲気中で電気
抵抗溶接を行わなくても、溶接部が金属色を呈す
ることが可能な、電極ワイヤを使用する溶接缶胴
の製造方法を提供すること目的とする。(Problems to be Solved by the Invention) The present invention provides a welded can body using an electrode wire, which allows the welded part to exhibit a metallic color without necessarily performing electric resistance welding in an inert gas atmosphere. The purpose is to provide a manufacturing method.
（課題を解決するための手段）
本発明の溶接缶胴の製造方法は、缶用素材の対
向する端縁を重ね合せて、重ね合せ部を有する筒
形体を形成し、重ね合せ部の両面に、電極ワイヤ
を対接させながら電気抵抗溶接して溶接部を形成
して、溶接缶胴を製造する方法であつて、該電極
ワイヤは、アルミニウムまたはアルミニウム被覆
複合線材よりなり、かつ少なくとも一方の電極ワ
イヤの上記対接する側の面が、扁平主面に肩部を
介して接続する側縁隆起部を有していて、溶接の
さい、重ね合せ部の少なくとも一方の端縁の端面
近傍部を肩部により押し潰して、肩部に対応する
形状の段差部を形成し、溶接部および該段差部の
表面にアルミニウムの被膜を溶着形成することを
特徴とする（以下第１発明とよぶ）。(Means for Solving the Problems) The method for manufacturing a welded can body of the present invention involves overlapping opposing edges of can materials to form a cylindrical body having an overlapping portion, and forming a cylindrical body on both sides of the overlapping portion. , a method for manufacturing a welded can body by electrical resistance welding to form a welded part while electrode wires are in contact with each other, the electrode wire being made of aluminum or an aluminum-coated composite wire, and at least one electrode The opposing surface of the wire has a side edge ridge that connects to the flat main surface via a shoulder, and during welding, the portion near the end surface of at least one end edge of the overlapping portion is connected to the shoulder. It is characterized in that a stepped portion having a shape corresponding to the shoulder portion is formed by crushing the shoulder portion, and an aluminum coating is deposited on the welded portion and the surface of the stepped portion (hereinafter referred to as the first invention).
さらに本発明の溶接缶胴の製造方法は、缶用素
材の対向する端縁を重ね合せて、重ね合せ部を有
する筒形体を形成し、重ね合せ部の両面に、電極
ワイヤを対接させながら電気抵抗溶接して溶接部
を形成して、溶接缶胴を製造する方法であつて、
該電極ワイヤはアルミニウムまたはアルミニウム
被覆複合線材よりなつており、かつ電極ワイヤの
上記対接する側の面は両方とも全体的に扁平であ
り、溶接のさい、溶接部の表面にアルミニウムの
被膜を溶着形成することを特徴とする（以下第２
発明とよぶ）。 Further, in the method for manufacturing a welded can body of the present invention, opposing edges of can materials are overlapped to form a cylindrical body having an overlapping part, and electrode wires are brought into contact with both sides of the overlapping part. A method of manufacturing a welded can body by forming a welded part by electric resistance welding, the method comprising:
The electrode wire is made of aluminum or an aluminum-coated composite wire, and both of the opposing surfaces of the electrode wire are generally flat, and during welding, an aluminum coating is deposited on the surface of the welded part. (hereinafter referred to as the second
(referred to as an invention).
（作用）
第１発明の場合、少なくとも一方の電極ワイヤ
の、重ね合せ部と対接する側の面が、扁平主面に
肩部を介して接続する側縁隆起部を有しているの
で、溶接のさい、重ね合せ部の少なくとも一方の
端縁の端面近傍部を肩部により押し潰して、肩部
に対応する形状の段差部を形成することができ
る。(Function) In the case of the first invention, since the surface of at least one of the electrode wires on the side that is in contact with the overlapping portion has a side edge raised portion connected to the flat main surface via the shoulder portion, welding is possible. At this time, a portion of at least one end edge of the overlapping portion near the end surface may be crushed by the shoulder portion to form a stepped portion having a shape corresponding to the shoulder portion.
電極ワイヤはアルミニウム又はアルミニウム被
覆複合線材よりなつており、アルミニウムの融点
は約600〜660℃であり、一方溶接中に重ね合せ部
の温度は約1000〜1250℃に上昇するので、電極ワ
イヤの溶接中の重ね合せ部に接触する表面は溶融
して、この接触する表面、すなわち溶接部および
上記段差部ならびにこれらの近傍部の表面に溶着
して、アルミニウム被膜を形成する。 The electrode wire is made of aluminum or aluminum-coated composite wire, and the melting point of aluminum is approximately 600-660℃, while the temperature of the overlapped portion increases to approximately 1000-1250℃ during welding, so welding of the electrode wire is difficult. The surface in contact with the overlapped portion in the melt is melted and welded to the contacting surface, that is, the welded portion, the stepped portion, and the surfaces in their vicinity to form an aluminum coating.
大気中で電気抵抗溶接する場合、アルミニウム
被膜の表面は酸化するが、酸化アルミニウム膜は
無色透明であるので、形成されるアルミニウム被
膜は銀白の金属色を呈する。このように大気中で
溶接を行つても、溶接部およびその近傍の表面の
大部分が金属色を呈するので、必ずしも不活性ガ
ス雰囲気中で電気抵抗溶接を行わなくてもよい。 When electrical resistance welding is performed in the atmosphere, the surface of the aluminum film is oxidized, but since the aluminum oxide film is colorless and transparent, the formed aluminum film has a silvery-white metallic color. Even when welding is performed in the atmosphere in this manner, most of the surface of the welded portion and its vicinity exhibits a metallic color, so it is not necessarily necessary to perform electric resistance welding in an inert gas atmosphere.
第２発明の場合は、電極ワイヤの両面は全体的
に扁平であるので、段差部に電極ワイヤは接触し
ない故、段差部にアルミニウム被膜が殆んど形成
されない点を除いては、作用は第１発明の場合と
同様である。 In the case of the second invention, since both surfaces of the electrode wire are flat as a whole, the electrode wire does not come into contact with the stepped portion, so the effect is the same except that the aluminum coating is hardly formed on the stepped portion. This is the same as in the case of No. 1 invention.
この場合は、アルミニウム被膜が形成される面
積は第１発明の場合より少ないが、それでも溶接
部およびその近傍の表面のかなりの大部分が銀白
の金属色のアルミニウム被膜で被覆されるので、
大気中で溶接しても、溶接部およびその近傍が著
しく変色して商品価値を低下するおそれはない。 In this case, although the area on which the aluminum coating is formed is smaller than in the case of the first invention, a considerable part of the surface of the welded part and its vicinity is still covered with a silvery-white metallic aluminum coating.
Even when welding is carried out in the atmosphere, there is no risk of significant discoloration of the welded area or its vicinity, reducing the commercial value.
（実施例）
第１図は第１発明の方法によつて製造された溶
接缶胴１０の例を示すものであつて、円筒形に成
形された、錫メツキ鋼板やテインフリースチール
等の缶用素材１の対向する端縁１ａ，１ｂを重ね
合せて形成された重ね合せ部２（第４図参照）を
電気抵抗溶接（通常マツシユシーム溶接）して、
溶接部２０を形成してなるものである。なお３ａ
は溶接部２０に接続する外面側段差部である（第
５図参照）。５は溶接のさい、溶接部２０および
その近傍部に沿つて形成された、缶軸方向に延び
る、銀白の金属色を呈するアルミニウム被膜であ
る。(Example) Fig. 1 shows an example of a welded can body 10 manufactured by the method of the first invention, which is for use in cans formed into a cylindrical shape and made of tin-plated steel sheets, stain-free steel, etc. The overlapping part 2 (see Fig. 4) formed by overlapping the opposing edges 1a and 1b of the material 1 is electrically resistance welded (usually pine seam welding).
A welded portion 20 is formed. Note 3a
is a stepped portion on the outer surface side that connects to the welded portion 20 (see FIG. 5). Reference numeral 5 denotes an aluminum coating having a silvery white metallic color and extending in the can axis direction, which is formed along the welded part 20 and its vicinity during welding.
次に本発明の溶接缶胴の製造方法の実施例につ
いて述べる。 Next, an example of the method for manufacturing a welded can body of the present invention will be described.
第２図、第３図は第２発明の実施例を示すもの
である。第２図において、６ａは外側電極ローラ
８の凹溝２１を挿通する外側電極ワイヤ、６ｂは
内側電極ローラ９の凹溝２２を挿通する内側電極
ワイヤである。外側電極ワイヤ６ａおよび内側電
極ワイヤ６ｂは通常、１本の連続した電極ワイヤ
６よりなる。 FIGS. 2 and 3 show an embodiment of the second invention. In FIG. 2, 6a is an outer electrode wire inserted through the groove 21 of the outer electrode roller 8, and 6b is an inner electrode wire inserted through the groove 22 of the inner electrode roller 9. The outer electrode wire 6a and the inner electrode wire 6b usually consist of one continuous electrode wire 6.
電極ワイヤ６は、アルミニウム（本明細書にお
いては、AlMg系等のアルミニウム合金を含めて
アルミニウムと呼ぶ）線材、またはアルミニウム
被覆複合線材よりなり、上下面は全体的に扁平な
扁平面となつている。 The electrode wire 6 is made of an aluminum (herein referred to as aluminum including aluminum alloys such as AlMg) wire or an aluminum-coated composite wire, and has a flat upper and lower surface as a whole. .
４は、缶胴素材１の対向する端縁１ａ，１ｂを
重ね合せて、重ね合せ部２を形成された筒形体で
あつて、重ね合せ部２の幅は、通常缶用素材１の
厚さの約１〜６倍である。外側電極ワイヤ６ａお
よび内側電極ワイヤ６ｂのそれぞれ、重ね合せ部
２と対接する側の面１００ａおよび１００ｂの幅
は、通常重ね合せ部２の幅の約２〜６倍である。 4 is a cylindrical body formed by overlapping the opposing edges 1a and 1b of the can body material 1 to form an overlapping portion 2, and the width of the overlapping portion 2 is usually equal to the thickness of the can material 1. It is about 1 to 6 times that of The width of the surfaces 100a and 100b of the outer electrode wire 6a and the inner electrode wire 6b, respectively, on the side facing the overlapped portion 2 is usually about 2 to 6 times the width of the overlapped portion 2.
第２図に示すように、筒形体４の重ね合せ部２
を一対の電極ワイヤ６ａ，６ｂの間に挿入して、
筒形体４を通常約10〜60ｍ／分の速度で送りなが
ら、対向する電極ローラ８，９の間に押圧力（通
常25〜50Kg）を加え、かつ電流（通常2500〜
6000A）を流すことによつて、重ね合せ部２は固
相溶接されて、第３図に示すように溶接部２０に
形成され、溶接缶胴１０が製造される。溶接のさ
い重ね合せ部２０は通常缶用素材１の厚さの1.2
〜1.8倍の厚さになるように押し潰される。すな
わち重ね合せ部２はマツシユシーム溶接される。 As shown in FIG. 2, the overlapping portion 2 of the cylindrical body 4
is inserted between a pair of electrode wires 6a and 6b,
While feeding the cylindrical body 4 at a speed of usually about 10 to 60 m/min, a pressing force (usually 25 to 50 kg) is applied between the opposing electrode rollers 8 and 9, and a current (usually 250 to 50 kg) is applied between the opposing electrode rollers 8 and 9.
6000A), the overlapping portion 2 is solid phase welded to form a welded portion 20 as shown in FIG. 3, and the welded can body 10 is manufactured. During welding, the overlapping part 20 is usually 1.2 times the thickness of the can material 1.
Crushed to ~1.8 times the thickness. That is, the overlapping portion 2 is pine seam welded.
溶接中の重ね合せ部２の温度は約1000〜1250℃
に上昇する。そのため電極ワイヤ６ａ，６ｂの表
面のアルミニウム（融点は約600〜660℃）が、溶
接部２０（本明細書においては段差部３′ａ，
３′ｂ間の部分を溶接部とよぶ）および段差部
３′ａ，３′ｂと反対側のその近傍部の表面に溶着
して、ごく薄いアルミニウム被膜５を形成する。 The temperature of the overlapping part 2 during welding is approximately 1000 to 1250℃
rise to Therefore, the aluminum (melting point is about 600 to 660°C) on the surface of the electrode wires 6a, 6b is
A very thin aluminum coating 5 is formed by welding to the surface of the portion between 3'b (referred to as a welded portion) and the adjacent portion on the opposite side of the stepped portions 3'a and 3'b.
溶接を大気中で行う場合、アルミニウム被膜５
の表面は酸化するが、形成される酸化アルミニウ
ム膜は無色透明であるので、アルミニウム被膜５
は銀白の金属色を呈する。すなわち溶接部２０と
その近傍部の大部分は銀白の金属色を呈する。段
差部３′ａ，３′ｂ側のアルミニウム被膜５で被覆
されない部分は一部変色するが、その面積は僅少
であるので、内視では殆んど変色が分らない。 When welding is carried out in the atmosphere, the aluminum coating 5
Although the surface of the aluminum coating 5 is oxidized, the formed aluminum oxide film is colorless and transparent.
exhibits a silver-white metallic color. That is, the welded portion 20 and most of its vicinity exhibit a silver-white metallic color. Parts of the stepped portions 3'a and 3'b that are not covered with the aluminum coating 5 are partially discolored, but the area is so small that the discoloration is hardly noticeable when viewed internally.
第４図、第５図は第１発明の実施例を示すもの
であつて、電極ワイヤの断面形状が第２発明の場
合と異なる。すなわち外側電極ワイヤ１０６ａ
は、下面左側に幅のほぼ2/3を占める水平な扁平
主面１１と、下面右側に幅のほぼ1/3を占める側
縁隆起部１３を備え、扁平主面１１と側縁隆起部
１３は斜右下方に傾斜した肩部１５を介して接続
している。 FIGS. 4 and 5 show an embodiment of the first invention, in which the cross-sectional shape of the electrode wire is different from that of the second invention. That is, the outer electrode wire 106a
has a horizontal flat main surface 11 occupying approximately 2/3 of the width on the left side of the lower surface, and a side edge ridge 13 occupying approximately 1/3 of the width on the right side of the lower surface, and the flat main surface 11 and the side edge ridge 13 are connected via a shoulder portion 15 that is inclined diagonally downward and to the right.
同様にして内側電極ワイヤ１０６ｂは、上面右
側に幅のほぼ2/3を占める水平な扁平主面１２と、
上面左側に幅のほぼ1/3を占める側縁隆起部１４
を備え、扁平主面１２と側縁隆起部１４は、斜左
上方に傾斜した肩部１６を介して接続している。 Similarly, the inner electrode wire 106b has a horizontal flat main surface 12 occupying approximately 2/3 of the width on the right side of the upper surface;
Side edge raised portion 14 occupying approximately 1/3 of the width on the left side of the top surface
The flat main surface 12 and the side edge raised portion 14 are connected via a shoulder portion 16 inclined diagonally upward and to the left.
電極ワイヤが連続した一本のワイヤよりなる場
合、電極ワイヤ１０６ａはそのままの姿勢で電極
ワイヤ１０６ｂよりも先に、或いは電極ワイヤ１
０６ｂよりも後に、内側電極ローラ９の凹溝２２
を挿通するものであるから、内側電極ローラ９は
凹溝２２の底部に電極ワイヤ１０６ａの下面の扁
平主部１１、肩部１５、側縁隆起部１３に対応す
る隆起部１７、肩部１９、凹入部１８を備えてい
る。同様にして外側電極ローラ８はその凹溝２１
の底部に電極ワイヤ１０６ｂの扁平主部１２、肩
部１６、側縁隆起部１４に対応する隆起部２３、
肩部２５、凹入部２４を備えている。 When the electrode wire consists of one continuous wire, the electrode wire 106a is placed in the same position before the electrode wire 106b, or the electrode wire 1
After 06b, the groove 22 of the inner electrode roller 9
Therefore, the inner electrode roller 9 has a raised part 17 corresponding to the flat main part 11, shoulder part 15, and side edge raised part 13 on the lower surface of the electrode wire 106a at the bottom of the groove 22, a shoulder part 19, A recessed portion 18 is provided. Similarly, the outer electrode roller 8 has its groove 21
A raised part 23 corresponding to the flat main part 12, shoulder part 16, and side edge raised part 14 of the electrode wire 106b on the bottom of the electrode wire 106b.
It has a shoulder portion 25 and a recessed portion 24.
溶接のさいは、重ね合せ部２の端縁１ｂの端面
１b′が、肩部１５近傍の扁平主面１１の下か、も
しくは肩部１５の下に、また端縁１ａの端面１
a′が、肩部１６近傍の扁平主面１２の上か、もし
くは肩部１６上に位置するように、筒形体４を送
入する。その他の溶接条件は第２図、第３図の場
合と同様である。 During welding, the end surface 1b' of the end edge 1b of the overlapping portion 2 is placed under the flat main surface 11 near the shoulder 15 or under the shoulder 15, and the end surface 1b' of the end edge 1a is
The cylindrical body 4 is fed so that a' is located on the flat main surface 12 near the shoulder 16 or on the shoulder 16. Other welding conditions are the same as those shown in FIGS. 2 and 3.
この場合は、溶接のさい重ね合せ部２が押し潰
されて、端面１a′，１b′近傍の材料が、肩部１
５，１６に沿つて円周方向外方に流れ、第５図に
示すように、肩部１５および１６にそれぞれ対応
する形状の外側段差部３ａおよび内側段差部３ｂ
が形成される。 In this case, the overlapping part 2 is crushed during welding, and the material near the end faces 1a' and 1b' is removed from the shoulder part 1.
5 and 16, and as shown in FIG.
is formed.
そして押し潰し量、すなわちマツシユ量が比較
的大きい場合は、段差部３ａおよび３ｂの外側近
傍部がそれぞれ、図示のように側縁隆起部１３お
よび１４に接触する。そのため溶接部２０、段差
部３ａ，３ｂおよびそれらの両側の近傍部に電極
ワイヤ１０６ａ，１０６ｂの表面のアルミニウム
が溶着して、薄いアルミニウム被膜５が形成され
る。 When the amount of squeezing, that is, the amount of mashing is relatively large, the outer vicinity portions of the stepped portions 3a and 3b come into contact with the side edge raised portions 13 and 14, respectively, as shown in the figure. Therefore, the aluminum on the surfaces of the electrode wires 106a, 106b is welded to the welded portion 20, the stepped portions 3a, 3b, and the vicinity of both sides thereof, and a thin aluminum coating 5 is formed.
なお、重ね合せ部２の一方の面に対接する線電
極の面は全体的に平坦であり、他方の面に対設す
る線電極の面は、第４図に示すタイプの側線隆起
部を有するようにしてつまり、第２図と第４図の
実施例を組合せた状態で溶接を行つてもよい。ま
た本発明は不活性ガスを吹き付けながら溶接を行
うことを妨げるものではない。 Note that the surface of the line electrode that is in contact with one surface of the overlapping part 2 is flat as a whole, and the surface of the line electrode that is opposite to the other surface has a side line ridge of the type shown in FIG. In other words, welding may be performed in a combination of the embodiments shown in FIGS. 2 and 4. Further, the present invention does not preclude welding while spraying an inert gas.
次に具体例について説明する。 Next, a specific example will be explained.
特公昭54−26213号公報に記載のタイプの溶接
機（所謂スードロニツク溶接機）を用いて、厚さ
0.21mm、錫メツキ量2.8ｇ／m2（内面側及び外面
側）の錫メツキ鋼板から内径65φmm、重ね合せ部
２の幅0.4mmの筒形体４を形成し、重ね合せ部２
を次の条件で大気中で、マツシユシーム電気抵抗
溶接した。 The thickness was
A cylindrical body 4 with an inner diameter of 65φmm and a width of 0.4 mm at the overlapping portion 2 is formed from a tin-plated steel plate with a tin plating amount of 2.8 g/m 2 (inside and outside sides) of 0.21 mm.
The pine seam was electrical resistance welded in the atmosphere under the following conditions.
電極ワイヤ６ａ，６ｂとして外径1.6mmのアル
ミニウム線材（アルミニウム合金線材を180℃−
25分焼鈍した）を、第２，３図に示す如く扁平化
して使用した。 The electrode wires 6a and 6b are made of aluminum wire (aluminum alloy wire) with an outer diameter of 1.6 mm at 180°C.
(annealed for 25 minutes) was flattened and used as shown in Figures 2 and 3.
溶接加圧力は30Kg、溶接電流の周波数は500Hz、
溶接電流は3000A、溶接速度は36ｍ／分であつ
た。 Welding force is 30Kg, welding current frequency is 500Hz,
The welding current was 3000A and the welding speed was 36m/min.
形成された溶接部２０の厚さは0.38mmであつ
て、スプラツシユの発生は実質的になく、溶接部
２０の表面、および段差部３ａ，３ｂと反対側の
溶接部近傍の電極ワイヤ６ａ，６ｂと接触した表
面に、缶軸方向に溶着した細長い帯状のアルミニ
ウム被膜５が形成された。アルミニウム被膜５の
平均厚さは1.3gr／m2であつた。第６図は溶接部
断面のＸ線分光写真であつて、白点の部分はアル
ミニウム被膜を示す。 The thickness of the welded part 20 formed is 0.38 mm, and there is virtually no splash, and the surface of the welded part 20 and the electrode wires 6a, 6b near the welded part on the opposite side from the stepped parts 3a, 3b are An elongated strip-shaped aluminum coating 5 was formed on the surface in contact with the can, which was welded in the axial direction of the can. The average thickness of the aluminum coating 5 was 1.3 gr/m 2 . FIG. 6 is an X-ray spectrophotograph of a cross section of the welded part, and the white dots indicate the aluminum coating.
（発明の効果）
本発明の電極ワイヤを使用する溶接缶胴の製造
方法は、必ずしも不活性ガス雰囲気中で電気抵抗
溶接を行わなくても溶接部が金属色を呈するとい
う効果を奏する。(Effects of the Invention) The method for manufacturing a welded can body using the electrode wire of the present invention has the effect that the welded portion exhibits a metallic color even if electric resistance welding is not necessarily performed in an inert gas atmosphere.
さらに第１発明の場合は、電極ワイヤの肩部に
よつて押し潰されて形成された段差部も金属色を
呈するという効果を奏する。 Furthermore, in the case of the first invention, the step portion formed by being crushed by the shoulder portion of the electrode wire also exhibits a metallic color.
さらに第１発明は、上記段差部は肩部に対応す
る形状を有するので、肩部の勾配を比較的緩やか
にすることより、緩やかに傾斜した平滑な段差部
が得られ、この段差部には比較的均一な厚さの補
修塗膜を容易に形成できるというメリツトを有す
る。 Further, in the first invention, since the step portion has a shape corresponding to the shoulder portion, by making the slope of the shoulder portion relatively gentle, a smooth step portion with a gentle slope can be obtained. It has the advantage of being able to easily form a repair coating with a relatively uniform thickness.
第１図は本発明の方法により製造された溶接缶
胴の例の斜視図、第２図および第３図はそれぞ
れ、本発明の方法の第１の例による溶接が行われ
る寸前、および溶接終了直後の状態を示す説明用
要部縦断面図、第４図および第５図はそれぞれ、
本発明の方法の第２の例による溶接が行われる寸
前、および溶接終了後の状態を示す説明用要部縦
断面図、第６図は本発明の方法により製造された
溶接缶胴の溶接部断面のＸ線像写真である。
１……缶用素材、１ａ，１ｂ……端縁、１a′，
１b′……端面、２……重ね合せ部、３ａ，３ｂ…
…段差部、４……筒形体、５……アルミニウム被
膜、６ａ，６ｂ……電極ワイヤ、１０……溶接缶
胴、１１，１２……扁平主面、１３，１４……側
縁隆起部、１５，１６……肩部、１００ａ，１０
０ｂ……電極ワイヤの重ね合せ部に対接する側の
面、１０６ａ，１０６ｂ……電極ワイヤ。
FIG. 1 is a perspective view of an example of a welded can body produced by the method of the present invention, and FIGS. 2 and 3 are views, respectively, of the welding just before welding is performed and after the welding is completed according to the first example of the method of the present invention. The explanatory longitudinal sectional view of the main part showing the state immediately after, FIGS. 4 and 5, respectively,
An explanatory longitudinal sectional view of a main part showing the state just before welding is performed and after the completion of welding according to the second example of the method of the present invention, FIG. 6 is a welded part of a welded can body manufactured by the method of the present invention This is a cross-sectional X-ray image. 1...Can material, 1a, 1b...edge, 1a',
1b'...End face, 2...Overlapping portion, 3a, 3b...
...Stepped portion, 4... Cylindrical body, 5... Aluminum coating, 6a, 6b... Electrode wire, 10... Welded can body, 11, 12... Flat main surface, 13, 14... Side edge raised portion, 15, 16...Shoulder, 100a, 10
0b...The surface facing the overlapping portion of the electrode wires, 106a, 106b...The electrode wires.
Claims (1)
合せ部を有する筒形体を形成し、重ね合せ部の両
面に、電極ワイヤを対接させながら電気抵抗溶接
して溶接部を形成して、溶接缶胴を製造する方法
において、該電極ワイヤは、アルミニウムまたは
アルミニウム被覆複合線材よりなり、かつ少なく
とも一方の電極ワイヤの上記対接する側の面が、
扁平主面に肩部を介して接続する側縁隆起部を有
していて、溶接のさい、重ね合せ部の少なくとも
一方の端縁の端面近傍部を肩部により押し潰し
て、肩部に対応する形状の段差部を形成し、溶接
部および該段差部の表面にアルミニウの被膜を溶
着形成することを特徴とする溶接缶胴の製造方
法。 ２ 缶用素材の対向する端縁を重ね合せて、重ね
合せ部を有する筒形体を形成し、重ね合せ部の両
面に、電極ワイヤを対接させながら電気抵抗溶接
して溶接部を形成して、溶接缶胴を製造する方法
において、該電極ワイヤは、アルミニウムまたは
アルミニウム被覆複合線材よりなつており、かつ
電極ワイヤの上記対接する側の面は両方とも全体
的に扁平であり、溶接のさい、溶接部の表面にア
ルミニウムの被膜を溶着形成することを特徴とす
る溶接缶胴の製造方法。[Claims] 1. Opposing edges of can materials are overlapped to form a cylindrical body having an overlapping part, and both sides of the overlapping part are electrically resistance welded with electrode wires in contact with each other. In a method for manufacturing a welded can body by forming a welded portion, the electrode wire is made of aluminum or an aluminum-coated composite wire, and the opposing surface of at least one electrode wire is
It has a side edge ridge that connects to the flat main surface via a shoulder, and during welding, the shoulder crushes the area near the end surface of at least one edge of the overlapping part to correspond to the shoulder. 1. A method for producing a welded can body, comprising: forming a step portion having a shape of 100 mm, and depositing an aluminum coating on the welded portion and the surface of the step portion. 2. Overlap the opposing edges of the can material to form a cylindrical body with an overlapping part, and form a welded part by electric resistance welding on both sides of the overlapping part while making electrode wires face each other. In the method for manufacturing a welded can body, the electrode wire is made of aluminum or an aluminum-coated composite wire, and both of the opposing surfaces of the electrode wire are flat as a whole, and during welding, A method for manufacturing a welded can body, which comprises depositing and forming an aluminum coating on the surface of a welded part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18746685A JPS6250087A (en) | 1985-08-28 | 1985-08-28 | Can drum and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18746685A JPS6250087A (en) | 1985-08-28 | 1985-08-28 | Can drum and its manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6250087A JPS6250087A (en) | 1987-03-04 |
| JPH0238071B2 true JPH0238071B2 (en) | 1990-08-28 |
Family
ID=16206573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18746685A Granted JPS6250087A (en) | 1985-08-28 | 1985-08-28 | Can drum and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6250087A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56113893A (en) * | 1980-02-08 | 1981-09-08 | Toyo Seikan Kaisha Ltd | Welded can having superior corrosion proofness at side seam and its manufacture |
| JPS5931598A (en) * | 1982-08-14 | 1984-02-20 | 松下電工株式会社 | Device for firing discharge lamp |
-
1985
- 1985-08-28 JP JP18746685A patent/JPS6250087A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56113893A (en) * | 1980-02-08 | 1981-09-08 | Toyo Seikan Kaisha Ltd | Welded can having superior corrosion proofness at side seam and its manufacture |
| JPS5931598A (en) * | 1982-08-14 | 1984-02-20 | 松下電工株式会社 | Device for firing discharge lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6250087A (en) | 1987-03-04 |
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